771130631 has 2 divisors, whose sum is σ = 771130632. Its totient is φ = 771130630.

The previous prime is 771130601. The next prime is 771130643. The reversal of 771130631 is 136031177.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 771130631 - 2¹⁰ = 771129607 is a prime.

It is a super-2 number, since 2×771130631² = 1189284900132916322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 771130594 and 771130603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (771130601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385565315 + 385565316.

It is an arithmetic number, because the mean of its divisors is an integer number (385565316).

Almost surely, 2^771130631 is an apocalyptic number.

771130631 is a deficient number, since it is larger than the sum of its proper divisors (1).

771130631 is an equidigital number, since it uses as much as digits as its factorization.

771130631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 771130631 is about 27769.2389344757. The cubic root of 771130631 is about 917.0140396881.

The spelling of 771130631 in words is "seven hundred seventy-one million, one hundred thirty thousand, six hundred thirty-one".